.net 3.5 Server 2012 r2

Im trying to install .net 3.5 onto my 2012 r2 server and not having any luck.

I have removed the following security updates

KB2966826
KB2966827
KB2966828

I have also tried selecting the source and pointing at my install disk and it still fails.

Can I download the .net 3.5 files (not install package) and I can point at that source?

Any help would be great.

Thanks
RedDoorSuppliesAsked:
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Dan McFaddenSystems EngineerCommented:
I would try the following:

- with the installation media available, run the following command:

dism.exe /online /enable-feature /featurename:NetFX3 /all /Source:Path-To-The-SxS-Directory

Where the Source option is something like:  D:\sources\sxs  where D: is the CD/DVD drive

Dan
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RedDoorSuppliesAuthor Commented:
Hi I have tried that and I get an error related to the log file?

Have also tried a power shell install command pointing at the install CD which is making me think that may be part of the issue.
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Dan McFaddenSystems EngineerCommented:
Have you tried copying the contents of the CD to a local HDD and then trying the install?
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JohnBusiness Consultant (Owner)Commented:
Did you try install it from Control Panel, Programs and Features, Windows Features?  Enable both .NET 3.5 and 4.  Does that help.

Try running the .NET FX verify and repair tool.

The .NET Framework Repair Tool can be found at the following locations:
http://support.microsoft.com/kb/2698555
http://go.microsoft.com/fwlink/?LinkID=246062
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RedDoorSuppliesAuthor Commented:
Right after about 3 hours I have finally got it installed.

I had to change the group policy so the machine looks at the web rather that WSUS for the files

It shows you here how its done

http://support.microsoft.com/kb/2734782

What a ball ache but all sorted now.

Thanks
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Windows Server 2012

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